Loggings > HF Mystery Signals

11414 UNID Mystery 1430 UTC

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Aitrius:
Strange constant signal with rhythmic tone every 1 - seconds. High pitched.

s9+ in Michigan

Spread about 10khz bandwidth.

Picked up on my 7300 with 100ft long wire antenna.

I looked it up and it could be FSK or PSK? However, looks more like 10 tones, not 8, 12 or 20.

At about 14:50 UTC the signal just dropped to s2-3 but is still there.

Also picked it up on KIWISDR in Northern Michigan, Omaha Nebraska, Florida, Mexico and then also in the Carribean. Very loud in California at 15:09 UTC, faint in Hawaii and the Philipines.

Ended at 15:50 UTC

Nomadiq:
Can confirm - heard in Vermont at S9+20dB.

Looks like this:

Aitrius:

--- Quote from: Nomadiq on October 17, 2023, 1516 UTC ---Can confirm - heard in Vermont at S9+20dB.

Looks like this:



--- End quote ---


Yes, Can confirm. Thanks for getting a good photo of it!

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